The extinguisher should be discharges using the P.A.S.S technique – pull, aim, squeeze, and sweep.
- Pull the pin to break the tamper seal.
- Aim low, pointing the nozzle of the fire extinguisher at the base of the fire.
- Squeeze the handle to release the extinguishing agent.
- Sweep from one side to the other at the base of the fire till it extinguishes.
- Repeat in the event of re-ignition.